meson: scripts: introduce meson-gen-sym.py script

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>

scripts/meson-gen-sym.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python3
+
+import sys
+
+if len(sys.argv) < 5:
+    print('invalid arguments')
+    print('usage: {0} OUTPUT VERSION PUBLIC PRIVATE ...')
+    sys.exit(1)
+
+outfilepath = sys.argv[1]
+version = sys.argv[2]
+public = sys.argv[3]
+private = sys.argv[4:]
+
+with open(outfilepath, 'w') as out:
+    out.write('# WARNING: generated from the following files:\n\n')
+
+    with open(public) as tmp:
+        out.write(tmp.read())
+
+    out.write('\n\n# Private symbols\n\n')
+    out.write('{0} {{\n\n'.format(version))
+    out.write('global:\n\n')
+
+    for priv in private:
+        with open(priv) as tmp:
+            out.write(tmp.read())
+
+    out.write('\n\nlocal:\n*;\n\n};')